Cron Expression Validator
Validate and explain cron expressions in plain language, with a field breakdown and the next runs. Supports ranges, lists, steps and shortcuts. No sign-up.
./cron-validator
Valid expression
Summary
Minute every 15 minutes · Hour from 9 to 17, from Monday to Friday
Breakdown*/15Minuteevery 15 minutes9-17Hourfrom 9 to 17*Day of monthevery day*Monthevery month1-5Day of weekfrom Monday to FridayNext 5 runs
Everything is computed in your browser; nothing is sent to any server.
Reviews & ratings
No reviews yet. Be the first to leave one!
Related guides
Blog tutorials where this tool comes in handy.
Guide Kubernetes 1.37: What Breaks on Upgrade Day (and Why It's Your Control Plane) v1.37 does not introduce the static Pod restriction — it removes the off switch. If you disabled PreventStaticPodAPIReferences in 1.34-1.36, etcd and kube-apiserver are what fail to start. Three blockers, with the audit commands. Guide Build an AI agent on WhatsApp for your small business (Laravel + OpenAI) Build a WhatsApp AI agent with Laravel and OpenAI: webhook setup, conversation memory, catalog integration, and the Meta rules you must follow in 2026. Guide How to Build an AI Agent with Laravel and MCP (2026) Learn how to create an MCP server in Laravel to expose your business logic as tools that Claude, Cursor, and other AI agents can invoke. Guide How to Integrate the OpenAI API with Laravel (Step-by-Step Guide) Integrate the OpenAI API into Laravel step by step: get your API key, install the client, build a controller, and test real chat completions.
Related tools
Others from the catalogue that pair well with this one.
Date and Age Calculator Your exact age in years, months and days, the days between two dates, how many days 2 years and 5 months are, and which year you were born. No signup. Mexican Test Data Generator Generate fictitious RFC, CURP, CLABE and NSS with correct check digits to seed development environments and tests. Export to JSON, CSV or SQL. No server involved. Mock Data Generator Generate realistic mock data (names, emails, dates, UUIDs, numbers and more) with a configurable schema and export to JSON or CSV. All in your browser. robots.txt Generator Build your site's robots.txt with per-robot rules (Allow, Disallow, Crawl-delay) and sitemaps, with quick templates. Copy or download instantly.